Question

-2(csc2θ - cot2θ) - 1 simplify

Answer 1

\(-2(\csc^2\theta - \cot^2\theta) - 1 \)

or

\(-2(\csc(2\theta) - \cot(2\theta)) - 1\)

?

Answer 2

first one

Answer 3

You can simply with a Pythagorean identity. Do you know them?

Answer 4

You may have a look at this identity:

\[\large{\boxed{\csc^2{\theta} = 1+\cot^2{\theta}}}\]

Or you may proceed s @LarsEighner is advising you to.

Answer 5

If you do not know a Pythagorean identity to apply, you could express \(\cos^2\theta\) in other terms. Likewise \(\cot^2\theta\)

Answer 6

The identity @vishweshshrimali5 gave you is one of three Pythagorean identities that are often used when you have functions "squared"

Answer 7

okay got it thanks!